.van-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 85%;
  font-size: 30px;
  overflow: hidden;
  -webkit-transition: .3s;
  -o-transition: .3s;
  transition: .3s;
  border-radius: 10px;
  background-color: #fff;
  -webkit-transform: translate3d(-50%,-50%,0);
  transform: translate3d(-50%,-50%,0);
  .van-dialog__message{
    font-size: 30px;
  }
  .van-button{
    font-size: 30px;
    height: 80px;
    line-height: 80px;
  }
}